Wouldn't this simply come down to the regs? I say this as, here back in the day when fenders were still the mainstay on doors, the whole point of a nudgeing facility was to encourage passengers to get out of the way and let the doors close slowly. When the advent of the electronic fenders(curtain of light) came about, most of the time the nudging facility was disengaged because the units beeped incessantly when in nudge mode even if the doors didn't close over. So in this example it simply depends on what the regs allow you to do. If they allow the doors to close, open on nudge from the open button etc then that's what you should follow. The most simplest way for these is for the units beep on nudge, but not close over if your worried about hitting anybody and getting sued.